Most people who enjoy travelling believe that travel ______ not only our bodies but also our minds.
I am sure ____ he did is wise.
By the time he ____ at the party, all the other guests ____ playing games.
The English language ____ the grammar and vocabulary that people from many different countries and cultures brought to Britain.
Scientists observe ___ making the most of our senses when we are young can keep us healthy later on in life.
A lot of scientists believe that women’s sense of smell is better developed than ____ of men.